About OnebyZero
OnebyZero is a next-generation Data and AI consulting company headquartered in Singapore and driving impact across APAC. As an AWS-exclusive partner we help enterprises modernize data transform with AI and apply Generative AI in ways that deliver real business results.
Our vision is simple while at the same time ambitious: to make AI adoption both impactful and human-centered. We collaborate with leading enterprises in banking telecommunications retail and other industries to help them unlock tangible value from their data and AI initiatives. By combining deep industry expertise trusted partnerships and a relentless focus on outcomes OnebyZero empowers organizations to go beyond pilots and achieve lasting scaled impact
About the Role
We are seeking a Software Engineer II Backend with 46 years of professional software engineering experience and deep expertise in building scalable secure and maintainable backend this role you will design and implement APIs authentication flows and cloud-native services while ensuring observability and strong engineering practices. As a mid-level engineer you will also collaborate closely with frontend DevOps and cross-functional teams contributing to architectural discussions and best practices.
What Youll Do & The Impact Youll Have
- Design and implement backend systems following OOP and clean architecture principles.
- Build secure authentication flows including OAuth2 and token refresh mechanisms.
- Work with ORMs such as Prisma or SQLAlchemy for database interactions.
- Develop containerize and deploy applications using Docker and CI pipelines (e.g. GitHub Actions).
- Implement observability with logging and tracing for APIs.
- Leverage AWS services such as S3 RDS and Secrets Manager.
- Apply deployment security best practices across environments.
- Communicate effectively with frontend DevOps and cross-functional teams to deliver reliable solutions.
Requirements
What Youll Bring to the Table
Must-Have Skills:
- Strong understanding of OOP and clean architecture principles
- Experience implementing authentication flows (OAuth2 token refresh)
- Proficiency with ORMs like Prisma or SQLAlchemy
- Experience with Docker and CI pipelines (e.g. GitHub Actions)
- Implements observability: logging and tracing for APIs
- Familiar with AWS services: S3 RDS Secrets Manager
- Solid understanding of deployment security practices
- Strong communication with frontend DevOps and cross-functional teams
Nice-to-Have Skills:
- Experience with asynchronous processing using Celery or Cloud Tasks
- Exposure to AWS Lambda or ECS
- Familiarity with monitoring tools like Prometheus or Grafana
- Understanding of Cloud IAM roles and permission boundaries
- Implements circuit breakers and retry logic in services
Benefits
What We Bring to the Table
- Impact-First Culture: Your work directly contributes to real-world AI solutions and business outcomes.
- Professional Growth: Continuous learning opportunities mentorship from industry leaders and a clear path for career development.
- Competitive Compensation: Market-leading salary benefits and incentives.
- Dynamic Team Environment: Collaborate with a high-performing team that values curiosity integrity and ownership.
- Global Exposure: Opportunities for international travel.
OnebyZero is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
Required Skills:
What Youll Bring to the Table Must-Have Skills: Strong understanding of OOP and clean architecture principles Experience implementing authentication flows (OAuth2 token refresh) Proficiency with ORMs like Prisma or SQLAlchemy Experience with Docker and CI pipelines (e.g. GitHub Actions) Implements observability: logging and tracing for APIs Familiar with AWS services: S3 RDS Secrets Manager Solid understanding of deployment security practices Strong communication with frontend DevOps and cross-functional teams Nice-to-Have Skills: Experience with asynchronous processing using Celery or Cloud Tasks Exposure to AWS Lambda or ECS Familiarity with monitoring tools like Prometheus or Grafana Understanding of Cloud IAM roles and permission boundaries Implements circuit breakers and retry logic in services